Alliant Energy and Iowa’s consumer advocate have a $164.8 million-per-year difference of opinion when it comes to the utility’s request to raise electric rates.
Alliant’s Interstate Power & Light utility filed an electric rate case in March seeking to raise rates by $163 million annually, or about 14 percent overall.
The utility’s residential customers have already begun paying an 11.7 percent interim rate hike.
The Office of Consumer Advocate said Wednesday, July 7 that it will ask the Iowa Utilities Board to instead order Alliant to lower customers rates by $1.8 million per year overall.
Acting Consumer Advocate Jennifer Easler said the consumer office is also asking that the Iowa Utilities Board reject the utility’s request to have an automatic transmission cost adjustment clause, or tracker, placed on customer’s bills.
“Having a tracker just doesn’t give them any incentive to control costs,” Easler said.
Alliant’s transmission costs have climbed rapidly since the company sold its transmission system to ITC Midwest in December 2007. Easler said that roughly $48 million of the $163 million annual increase Alliant is seeking are higher transmission costs.
The consumer advocate asked the board to lower the transmission-related portion of the increase by $30.9 million.
“We are asking the (utilities) board to hold the company to the assurance it made in the sale of transmission assets that customers would be held harmless,” Easler said.
Some of the other major differences between the consumer advocate and Alliant include the test year Alliant chose to use in calculating the rate increase.
Easler said Alliant chose to use 2009, a year in which summer temperatures were much cooler than normal, resulting in lower electricity sales. The consumer advocate says that using a more normal year would lower Alliant’s rate increase needs by $31.5 million
In presenting its case to customers, Alliant has emphasized its $468 million investment in the Whispering Willow-east Wind Farm in Franklin County and a $188 million investment in environmental improvements at its Lansing Unit 4 coal-burning power plant in Lansing.
The consumer advocate wants Alliant’s rate increase lowered some $10 million per year because it exceeded the cost cap established for construction of the Whispering Willow Wind Farm by about $50 million, Easler said.
Alliant has said it’s willing to negotiate a settlement with the consumer advocate office that would tap regulatory reserve accounts to substantially reduce the initial rate increase. The accounts were set up with proceeds from Alliant’s sale of its Iowa transmission assets and its majority stake in the Duane Arnold Energy Center.
The proposed “cost management plan” would reduce the average increase of about 14 percent to aprpoximately 6 percent compared with 2009 bills, but its benefits would be temporary.
Easler said the consumer advocate’s office in general doesn’t believe Alliant is offering consumers a good deal by tapping regulatory reserve accounts to pay for rising transmission costs.
“These accounts were set aside to defray the costs of future investments, mainly in (electric) generation,” Easler said. “Our preference would be to use that to fund another capital asset, so that consumers would have the benefits over the life of that asset.”